New Balance 656 2E or 4E

Can anyone give some feedback on these? as i dont know which width and size to order, i read different things which confuses me.
Some say 2E fits like a 4E on this particular model and if you take the 4E you have to go down in size.
I'm looking for a wide toebox but if 2E already is very wide i think i dont need 4E...